The joke being that when it was time to update Sue's old desk top XP machine, she cashed in on a work incentive points / discount program and took my and our son's advice to buy a laptop - ended up with a 13" MBP and loves it long time. Once freed from sitting at a desk in an old bedroom office, she realized that ,"gee, if you took down this and one of the other walls, the kitchen would be so much nicer - and think how much money we'd save if you do the general contracting, electrical, and cabinetry yourself".

I have read that the BIB alignment is forgiving. With that, how much smaller can a cabinet be below it's ideal size. What parameters would you adjust in the BIB calculator? The driver I would like to possibly use requires a huge box (Eminence Beta 12LTA), would I still get bass out of it in a smaller box?

It is forgiving because it's acoustically quite large referenced to the driver's specs, especially once the room's loading is added; so being tuned so far below Fs where the driver has no control, reducing acoustical loading can severely reduce its power handling below Fs to nothing, ergo a using high pass filter is a good plan.

Also, shrink it too much and there's not enough acoustical loading to smooth out its pipe harmonics without mass quantities of stuffing, reducing it to a large TL with minimal bass if there's not a lot of room gain.

GM

__________________Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.